Interlocking metallic shingle.



G. H. PBDLAR.

INTBRLOGKING METALLIC SHINGLB.

APPLICATION FILED JAN. 2, 1909.

Patented Dec. 21

INV'L'NTBR 6.1! .PEBLAR GEORGE HENRY PEDLAB, 0F OSHAWA, ONTARIO, CANADA.

INTERLOCKING METALLIC SHINGLE.

Specication o1' Letters Patent.

Patented Dec. 21, 1909.

Application led January 2, 1909. Serial No. 470,543.

To all whom it may concern:

Be it known that I, GEORGE HENRY PED- LAR, of Oshawa, in the Province ofGntario, Canada, have invented certain new and useful Improvements inInterlocking Metallic Shingles, of which the following 1s aspecification.

My invention relates to improvements in interlocking metallic shingles,and the objects of my invention are to provide means for strengtheningthe face of the shingle, and at the same time carrying the water oil theshingle and away from the side joints thereof. v

Further objects are to provide means for firmly and effectivelysupporting the face of the shingle in position parallel with the roof,for providing means for enabling the interlocking flanges to fit moreclosely to each other and to occupy as little room as possible, and alsoto provide means whereby the shingles may be accurately interlocked andregistered with each other, without the necessity of appealing to thejudgment of the workmen.

These objects are accomplished first, by longitudina ly-extendingfluting formed in the surface of the shingle adapted, at once tostrengthen the same and form gutters or channels for carrying ofi' thewater from the shin les away from the side joints; secondly byepressions centrally in the top, each adapted to bear on the roof andsupport the face of the shingle parallel with the roof; thirdly by animproved form of downwardly curved trough-shaped interlocking flanges atthe side adapted to bear against the roof to support the face of theshingle in its proper raised position; fourthly, by improvements in theinterlocking top, bottom and side flanges hereinafter more particularlydescribed in detail; and fifthly, by indicating score marks on eachshingle adapted to register with the adjacent shingle, when they are intheir proper relative position. All these and other features of theinvention are described more fully in the accompanying specificationsand drawings.

In the drawings, Figure 1 is a 1an view of the shingle. Fig. 2 is a planview showing three of the shingles interlocked together. Fig. 3 is asection along the line 2 2, Fig. 1. Fig. 4. is a` section alon the line3 3, Fi 1. Fig. 5 is an enlarfre sectional detail t rough theinterlocked side joint. Fig. 6 is an enlarged sectional detail throughthe trough-shaped flange at the edge of each shingle. Fig. 7 is asectional detail on the line 4 4, Fig. 1. Fig. 8 is an enlargedsectional detail throu h the overturned flange, the section being ta renat the point indicated by the line 5 5, Fig. 1. Fig. 9 is an enlargedsection through the overturned flange at the top of the shingle. Fig. 10is an enlarged section through the undcrturned flange at the bottom ofthe shingle. Fig. 11 is an enlarged section on the line 6 6,

In the drawings, like numerals of reference indicate corresponding partsin each figure.

Referring to the drawings, 10 represents the face of the shingle, which,in accordance with the present invention, is formed with a plurality oflongitudinally-extending flutes l1 which may be formed in any suitableshape, such as either U-shaped, V-shaped, semi-cylindrical or otherwise,in cross-section, those illustrated being partially cylindrical. Theseflutes give great. rigidity to the face of the shingle, and prevent itbending even when picked up by one corner. Further than this, as theyextend in a vertical direction whcn the shingle is laid, they formeffective gutters for carrying Water on the roof, preventing it runningdown the side joints.

Hithcrto, when the face of the shingle has been made plain, any water onthe roof has run down the side joints, and while, ordinarily, these arewater-tight, yet, when "a very large roof is covered, the shingles nearthe bottom of the roof frequently have such quantities of water runningdown the side joints, as to render it very difficult, if not impossible,to maintain them in a watertight condition. The present inventiondistributes this water over the whole face of the shingle.

The top and bottom joint between the shingles is formed by an overturnedflange 12 at the top of each shingle, which engages with the underturnedflange 13 formed along the bottom of each. Each shingle is furtherprovided with a suitable molding 14' near the bottom which may be in theform of an annular ridge and the overturned llange and shingle beneathit is provided with a corresponding molding 15 adapted to fit intoandregister with the molding 14:, whereby an effective barrier is providedagainst the entrance of water and at the saine time a stilfened ridge isprovided which will effectively resist any downward pressure on thejoints.

In order to enable the shingles in the different rows to break joint, itis necessary to provide a central depression 16 in the upper ridge. Tofurther hold the upper edge of the shingle on a level with the facethereof, and also to ive greater support to the face, a downwarly-extending projection 17 is formed at about the middle of the upperedge of the shingle, the said projection being adapted to bear on. theupper surface of the roof, as shown most clearly in Fig. 7.

To give increased rigidity to the underturned and overturned flanges 12and 13 respectively, a plurality of corresponding corrugations 30 and 31are provided in the same extending transversely of the shingle. It willbe observed that these corrugations form effective means for locking theoverturned and underturned flanges together, and as the metal possessesa certain amount of resiliency, a spring lock is thus formed betweenthem.

The side joint of the shingle is formed by a trough-shaped flange 18,along one edge, which fits into an underturned flange 19, formed on theedge of the adjacent shingle. the said underturned flange being providedwith a ridge 20 adapted to fit on the underside of the trough-shapedflange as shown in Fig. 5. This trough-shaped flange is curved downsufciently4 to cause its underside to bear against the bottom of theunderturned flange and thus derive su port from the roof, whereby thesurface ofp the shingle will be supported by the said trough-shapedflange 18 bearing against the roof in the manner specified.

In order to enable the metal to lie flatly and evenly at the point.where the top and bottom and side joints meet, the end of theunderturned flange 19 has a portion cut away to form a rabbet or recess21, the use of which will be seen from an inspection of Fig. 2.

To enable the top and bottom joints to fit more closely and accuratelytogether, the outer portion 22 of the overturned flange 12 has theextremities 23 and 24 thereon pressed into engagement With the trough 18and the underturned flange 19 while the outer portion 25 on the flange12.0nly extends to the edge ofy the trough and the underturned flangerespectively, and is not pressed into engagement with the trough or theunderturned flange as shown more particularly in Fig. 11.

To-enablethe shingles to be accurately registered with each other, tosecure a better joint between the different sections and at the sametime to increase the speed with which they mayA be laid by the workman,two score marks 26 and 27 are provided on the top and 28 and 29 on thebottom, adapted to register with each other when the shingles are laidas shown in Fig. 2.

What I claim as my invention is 1. A metallic shingle formed withinterlocking side joints, the flanges of which extend below the face ofthe shingle, and having the top edge of the shingle formed with adepression on the upper surface forming a projection on the lowersurface adapted to space the ,shingle from the roof, and a suitableinterlocking means formed along the top and bottom of the shingle.

2. A metallic shingle formed with interlocking side joints, the flangesof which extend below the face of the shingle, and having the top edgeof the shingle formed with a projection formed by a depression pressedin the edge of the shingle, adapted to abut the roof and support said ede in the same plane as the face of the shing e, and suitableinterlocking means formed along the top and bottom of the shingle.

3. A metallic shingle formed at the side with interlocking flanges andhaving the bottom formed with an underturned flange and the top formedwith an overturned flange, the ends of the upper part of which arepressed into engagement with the side flanges, the said overturnedflanges having an outer portion extending only to the edge of the sidejoints, -and disconnected from said side joints.

4. A metallic shingle having suitable interlocking top and bottom jointsand having interlocking side joints formed by an undercurved flange onone side, and a troughshaped flange on the opposite side, the saidtrough-shaped flange extending down sulficiently to form a support forthe face of the shingle by bearing on the bottom ofthe undercurvedflange, whereby the faces of the two abutting shingles may be supportedin the same plane, the upper edge of the said shingle being providedwith a depression on the upper surface forming a projection on the lowersurface adapted tobear against the roof and thus space the face o f theshingle from the roof.`

5. An interlocking metallic shingle having an overturned interlockingflange at the edge thereof, the said flange being formed i ingcorrugations adapted to strengthen the with a plurality of corrugationsextending same. 10 longitudinally thereof and adapted to In witnesswhereof I have hereunto set strengthen the same. my hand in the resenceof two witnesses.

6. An interlocking metallic shingle hav- GEO GE HENRY PEDLAR. ing anoverturned ange at the top and an Witnesses: underturned flange at thebottom, both of ED. J. STEPHENBON,

said flanges being formed with correspond- Ro'r. PATE.

